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how to enable data sampling after steady state using TUI |
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June 7, 2017, 20:18 |
how to enable data sampling after steady state using TUI
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#1 |
Senior Member
raunak jung pandey
Join Date: Jun 2016
Posts: 102
Rep Power: 10 |
I am carrying out a transient simulation using TUI.
I need to enable Data Sampling. Say after 10000 iterations or 0.1 sec of the transient simulation. How to enable data sampling for the following case using only TUI or a journal file. Thank You Last edited by raunakjung; June 7, 2017 at 21:57. |
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June 7, 2017, 21:52 |
Not in steady
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#2 |
Senior Member
Svetlana Tkachenko
Join Date: Oct 2013
Location: Australia, Sydney
Posts: 415
Rep Power: 14 |
Hello, I was confused by your question initially...
From user manual: "Data Sampling for Time Statistics enables the sampling of data during an unsteady calculation. See Sections 26.12.1 and 26.12.4 for details. " For transient simulation, use "/solve/set/data-sampling yes 25 ...". It needs a few more words at the end of the command, but they depend on the model you are using, so either "/solve/set/data-sampling yes 25 yes yes yes" or "/solve/set/data-sampling yes 25 yes yes" depending on what models you have on. It asks everyone these questions: Data Sampling for Time Statistics? [no] yes Sampling interval [1] 25 Then for me it is three questions: Collect statistics for flow shear stresses? [yes] Collect statistics for flow heat fluxes? [yes] Collect wall statistics? [yes] Please try it in GUI first to know what questions it asks, and then copy it over to your commands list. |
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June 8, 2017, 03:53 |
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#3 | |
Senior Member
raunak jung pandey
Join Date: Jun 2016
Posts: 102
Rep Power: 10 |
Quote:
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June 9, 2017, 02:31 |
The whole thing
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#4 |
Senior Member
Svetlana Tkachenko
Join Date: Oct 2013
Location: Australia, Sydney
Posts: 415
Rep Power: 14 |
Hi,
Thanks for following up. I thought you were only asking about data sampling, sorry! I believe you may be able to save your case as steady in GUI, and then specify the following in your commands file. Code:
;; iterates 10,000 iterations in steady state /solve/iterate 10000 ;; switches to unsteady flow /define models unsteady-1st-order? yes ;; enables data sampling, you might need an extra 'no' here /solve/set/data-sampling yes 25 no no ;; does 1000 time steps with 10 iterations in each in transient regime /solve/dual-time-iterate 1000 10 ;; writes your case and data like usual /file/rcd 2.cas |
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June 10, 2017, 15:22 |
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#5 | |
Member
Omar jumaah
Join Date: Jan 2016
Posts: 36
Rep Power: 10 |
Quote:
Hope this will help, |
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Tags |
data sampling, fluent, journal file, parallel, tui |
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